Window construction with means for holding the sash in open positions



Apnl 20. 1954 A. H. ARMERDING 2,675,590

wmoow CONSTRUCTION WITH MEANS FOR HOLDING THE SASH IN OPEN POSITIONS Filed Sept. 50, 1952 2 Sheets-Sheet 1 April 20, 1954 Filed Sept.

A. H. ARMERDING wmnow CONSTRUCTION WITH MEANS FOR HOLDING THE SASH IN OPEN POSITIONS Patented Apr. 20, 1954 UNITED STATES PATENT OF P ICE WINDOW CONSTRUCTION WITH MEAN S FOR HOLDING THE SASH IN OPEN POSITIONS Jersey Application September 30, 1952, Serial No. 312,349

6 Claims. 1

My invention relates to so-called double hung window construction more particularly to socalled double hung windows wherein the ashes slide up and down.

It is an object of my invention. to provide a novel and improved type of doube-hung window construction wherein the necessity for the use of sash weights or spring balances is eliminated and means for holding the sash in any desired position are provided which means are more quickly installable and capable of more economical production than. heretofore.

It is another object of my invention to provide a novel and improved type of window construction including a clutch piece slidable in the window frame and tiltable into a jamming position for holding the sashv in any desired open position, but Which is held out of its tilted position when the sash is being opened.

It is another object of my invention to provide a Window construction of the described type wherein means are provided for also holding the clutch piece out of its tilted position. when the sash i being opened.

It is another object of my invention to provide a Window construction of the described. type wherein means are provided for also holding the clutch piece out of its tilted position while the window sash is being moved to its closed position.

It is still another object of my invention to provide a window construction of the foregoing type wherein a bafile plate is provided for holding the clutch. piece out of its tilted position in the closed position of the sash.

To attain the objects and advantages of my invention, I provide a slot in each of the runners and connecting side frames of the sash wherein I position a clutch piece having end portions slidable in clutch grooves in the vertical side frame pieces of the window frame. Suitable means are provided for tilting the end portions of the clutch pieces into jamming positions in the clutch grooves for holding the sash open. Means are provided for moving the clutch pieces out of their jamming positions so that the window can be closed when desired. A bafiie plate is also provided for holding the clutch pieces out of their tilted positions when the window sash is closed.

I shall describe one form of my invention and then point out the novel features thereof in claims.

In the accompanying drawings:

Fig. 1 i an inside view of a window embodying the features of my invention;

Fig. 2 is a fragmentary vertical sectional view taken through the window frame and sash showing the sash in an intermediate position and the clutch piece in its tilted position;

Fig. 3 is a view similar to Fig. 2 showing the sash in its closed position and the clutch piece in an upright position;

Fig. 4 is a fragmentary vertical sectional view taken on the plane of the line 4-4 of Fig. 3;

Fig. 5 is a cross sectional view taken on the plane of the line 5-5 of Fig. 3;

Fig. 6 is a cross sectional view taken on the plane of the line 6-6 of Fig. 3;

Fig. 7 is a vertical sectional view taken on the plane of the line 1-1 of Fig. 1;

Fig. 8 is a fragmentary vertical sectional view taken through the Window frame and sash showing the tripper bars and control mechanism with I the sash moving toward its closed position;

Fig. 9 is a view similar to Fig. 3 with the sash being opened;

Fig. 10 is a cross sectional view taken on the plane of the line ill-Ii] of Fig. 7;

Fig. 11 is a cross sectional view taken on the plane of the line H-ll of Fig. 1;

Fig. 12 is a cross sectional view taken on the plane of the line I2--l2 of Fig. 1;

Fig. 13 is a perspective view of the clutch piece;

Fig. 14 is a fragmentary perspective view of a runner and connecting sash frame showing the slot for the clutch piece.

Referring to the drawings, reference characters I and 2 designate the upper and lower sashes respectively for a window frame which includes vertical side pieces 3 and 4, and also includes top and bottom pieces '5 and 6, the top piece and the bottom piece constituting a lintel and a sill, respectively, and being secured to the side pieces or jambs in any suitable manner. Sashes l and 2 comprise an extruded metal frame I and the usual glass pane 8. Metal frame '5 includes a horizontal top member or rail 9, a pair of upright side members or stiles It and ii, and a horizontal bottom member or rail l2. Each of the sash frame member is formed with a channeled recess ['3 extending throughout its length and as shown glass pane 8 is mounted in such channeled recess with putty M, or other suitable material. Upright side frame members or stiles it and H have runners l4 integrally formed thereon to ride in runner groove l5 provided in the vertical side pieces or jambs 3 and t of the window frame. A layer of felt it or other insulating material is secured on the runner surface.

Clutch mechanisms are provided in accordance with my invention for each of the upper and lower sashes, but inasmuch as the mechanisms are identical, only the mechanism for the lower sash will be described. Each of the runners l4 and the corresponding stile of the lower sash 2 is provided with a transverse slot having an inclined bottom wall 2|. A clutch piece 2| is positioned in each slot and has flanged end portions or lugs 22 slidably mounted in clutch grooves 23 in the side pieces or jambs 3 and d of the window frame. Each end portion or lug 22 is polygonal in cross section (see Figs. 9 and 13) to provide biting edges for the purpose to be described, and the relative sizes of the end portions 22 and grooves 23 are such that each end portion 22 fits loosely into one groove 23 so that said end portion can abut the opposed walls of said groove and fulcrum thereon to permit the clutch piece to be tilted about said end portions to a pre-determined angle at which said biting edges or" the end portions bite into the walls of the corresponding said grooves 23 whereby the clutch piece is jammed in the grooves. Secured to each clutch piece 2| as by a rivet 2 is a metallic spring 25 one end 2? of which engages a raised portion 26 between the grooves 23 in the window jamb so that the spring normally urges or biases the clutch piece into said jammed position as best shown in Fig. 2.

The lower sash is opened in the usual way, being gripped manually by the operator and raised upwardly, and as the sash is raised the clutch pieces 2| are engaged as at as (Fig. 9) by the inclined walls 2i of the slots 20 which force the clutch pieces against the influence of the springs 25 into positions wherein the main portions 26 of the clutch pieces are substantially parallel to the adjoining vertical jambs 3 and Q of the window frame and said biting edges are free from the walls of the grooves 23. The clutch pieces are slid upwardly in the grooves 23 by abutment of the walls 30 of the slots with the clutch pieces as the sash is moved. upwardly. When the sash is stopped in a desired position, each clutch piece is tilted in its slot 2i} about its end portions 01' lugs 22 by the spring 25 to a predetermined angle at which the biting edges of said end portions bite into the walls of the grooves 23, and when the sash is released by the operator, the upper end walls 32 of the slots Ell abut the upper ends 3! of the clutch pieces as shown in Fig. 2 so that the weight of the sash tilts the clutch pieces further in the same direction thereby forcing the biting edges of the end portions or lugs 22 more tightly into contact with the walls of the grooves 23, as a result of which the clutch pieces are effective for holding the sash in said desired open position.

Means are provided for moving the clutch pieces out of their jammed positions and into positions wherein main portion 26 is substantially parallel the adjoining side piece of the window frame. Such means include a pair of slidable tripping bars and M mounted in horizontal bottom member l2 of the sash frame in alignment with suitable openings d3 provided in the upright side members of the sash frame and through which end portions 4d of the tripping bars may be projected to push the clutch pieces out of their tilted positions. Tripping bars ii! and 44 have one end opposite from end portions Ml pivotally mounted as at 45 on an inside circular plate 46 which is pivotally mounted as at i! in bottom member l2. Suitably secured to inside circularplate 4B are members 8 and 4 49. Upwardly extending member 48 has a curved end portion 50 which may be pressed by the operators fingers to rotate plate 46 in a counterclockwise direction a shown in Figs. 8 and 9 for the purpose of moving the tripping bars outwardly to actuate the clutch piece out of its tilted position. The clutch piece may also be actuated by member 49. The tripping bars and connecting members are moved in the opposite direction by the force of spring 25 on the clutch pieces provided pressure is withdrawn from the member 48 or 49. When it is desired to lower the sash, either member 49 or 50 may be pressed by the fingers of the operator from the position shown in Fig. 9 to the position shown in Fig. 8 so that the bars 40 and 4! trip the clutch pieces or tilt them out of jammed relation to the walls of the grooves 23 so that the sash may easily slide downwardly under-gravitational action, the members 49 and 50 being so held while the sash is being lowered. Obviously upon release of the members 49 and 50 the springs 25 will force the bars 413 and ll to their normal position simultaneously with the tilting of the clutch pieces into their normal position as shown in Fig. 2. The member 49 engages the Windowsill when the sash i completely lowered or closed so that the bars 45 and M are moved into the position to hold the clutch pieces in the positions in which end lugs 22 are freely slidable in the grooves 23, as shown in Fig. 9.

Secured near the bottom of each of side pieces 3 and 4 as by a screw 60 so as to overlap the runner grooves I5 i a baflie plate 6| which engages clutch piece 2! as the sash is moved into its closed position and which plate maintains clutch piece 2| in an upright position while the window sash remains closed, and serves to facilitate removal of the sash and prevent accidental dislodgement of the clutch piece.

v In cases where provision is made for the removal of the sashes for cleaning or repair, the baiile plate 6| holds the clutch 2| in proper position to drop into the slot 20 when the sashes are replaced.

Another advantage of having the clutches remain in their proper positions in the frame grooves is that they will not be exposed to damage when the sashes are removed for cleaning or repair. Still another advantage is that in the case of failur of a clutch, a new one may be inserted by anyone in less than a minute, without the use of tools. Notches are provided at the top of the groove for such removal and replacement.

Although I have herein shown and described only one form of my invention, it is to be understood that various changes and modifications may be made therein within the scope of the appended claims without departing from the spirit and scope of my invention.

What I claim is:

1. In combination, a window frame including a pair of substantially parallel jambs having runner grooves and clutch grooves therein, a sash including substantially parallel spaced stiles and runners, said runners being slidable in the runner rooves and connected with said stiles, each runner having a transverse slot therein which also extends into the corresponding stile, a clutch piece positioned in each such slot, said clutch piece having end portions loosely fitted into said clutch grooves and said clutch piece being tiltable about such end portions because of the loose fit, and biasing means for tilting said piece about said end portions and into said slot to a position wherein said end portions are jammed into the clutch grooves and the clutch piece is efiective to restrain movement of the sash in a predetermined direction.

2. In combination, a window frame including a pair of substantially parallel jambs having runner grooves and clutch grooves therein, a sash including substantially parallel spaced stiles and runners, said runners being slidable in the runner grooves and connected with said stiles, each runner having a transverse slot therein which also extends into the corresponding stile, each slot having an inclined end Wall, a clutch piece positioned in each such slot having end portions loosely fitted into said clutch grooves and said clutch piece being tiltable about such end portions because of the loose fit, and biasing means for tilting said piece about said end portions and into said slot to a position wherein said end portions are jammed into clutch grooves and the clutch piece is effective to restrain movement of the sash in one direction, said clutch piece being engaged by the said end wall of the slot during movement of the sash in the opposite direction for holding the clutch piece out of its tilted position.

3. The combination as set forth in claim 2 with 6 the addition of means for holding the clutch pieces out of their tilted positions to permit movement of the sash in said one direction.

4. The combination as set forth in claim 2 with the addition of a baifi plate disposed to overlap the runner grooves in each of said Window jam bs and hold said clutch pieces out of their tilted positions when the sash is moved into a closed position.

5. The combination as set forth in claim 2 wherein said biasing means is a spring connected to said clutch piece and in contact with one of said window jambs.

6. The combination as set forth in claim 3 wherein the last mentioned means includes a pair of tripper bars slidably mounted in the sash and projectable into the slots to engage the clutch pieces therein, and mechanism for controlling the positions of said tripper bars.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,090,133 Larson Aug. 17, 1937 2,330,533 Wiley Sept. 28, 1943 

